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SAE-AISI H14 Steel vs. S32803 Stainless Steel

Both SAE-AISI H14 steel and S32803 stainless steel are iron alloys. They have 71% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI H14 steel and the bottom bar is S32803 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 75
81
Tensile Strength: Ultimate (UTS), MPa 710 to 2030
680

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Melting Completion (Liquidus), °C 1530
1450
Melting Onset (Solidus), °C 1490
1400
Specific Heat Capacity, J/kg-K 460
480
Thermal Conductivity, W/m-K 35
16
Thermal Expansion, µm/m-K 11
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.3
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 10
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 15
19
Density, g/cm3 8.1
7.7
Embodied Carbon, kg CO2/kg material 2.7
3.7
Embodied Energy, MJ/kg 39
53
Embodied Water, L/kg 73
180

Common Calculations

PREN (Pitting Resistance) 13
36
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 24 to 69
25
Strength to Weight: Bending, points 22 to 44
22
Thermal Diffusivity, mm2/s 9.3
4.4
Thermal Shock Resistance, points 24 to 68
22

Alloy Composition

Carbon (C), % 0.35 to 0.45
0 to 0.015
Chromium (Cr), % 4.8 to 5.5
28 to 29
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 86.5 to 89.9
62.9 to 67.1
Manganese (Mn), % 0.2 to 0.5
0 to 0.5
Molybdenum (Mo), % 0
1.8 to 2.5
Nickel (Ni), % 0 to 0.3
3.0 to 4.0
Niobium (Nb), % 0
0.15 to 0.5
Nitrogen (N), % 0
0 to 0.020
Phosphorus (P), % 0 to 0.030
0 to 0.020
Silicon (Si), % 0.8 to 1.2
0 to 0.55
Sulfur (S), % 0 to 0.030
0 to 0.0035
Tungsten (W), % 4.0 to 5.3
0